Could I have wrong carbon seal ring? Doesn't seem to fit axle.

[swaskey]

08 C180 215
Finishing rebuild on a project boat that could, maybe, see water pretty soon.

Ordered Carbon Seal rebuild kit from SBT. Here's the link.
ShopSBT - Driveline Rebuild Kit
Ordered part code 77-112, and the package I received was marked 77-112.

Attempting to install & the carbon seal steel ring doesn't seem like it will even get close to fitting. I haven't measured, but it looks like about 5 thou diff, possibly a little more. Any ideas or suggestions what I might be overlooking? TIA everyone!

 

[MacSeaDoo]

Did you call SBT? Do you have the old one to compare? What kind of shape is it in?

 

[swaskey]

Old ring is long gone unfortunately. Murphy said I wouldn't need it.

I just spoke w/ Bobby @ SBT. He's going to mic out the inner diameter of the steal ring & the outer diameter of the driveshaft on known accurate parts he has in stock. I'll compare those numbers to the parts I have and see if possibly I received a mis-packaged rebuild kit, or - could I have the wrong drive shaft somehow, for some reason?

 

[MacSeaDoo]

Oh that Murphy, I know him well.....

I hope you get some resolution on it. Maybe the driveshaft is not OEM?

 

[swaskey]

I heard back from Bobby @ SBT. Long story short, I purchased a 77-112 rebuild kit - which is applicable on some challenger 180 (probably the majority, from my reading). The internal diameter of the steel retaining ring is 27mm. There is also a 77-113 rebuild kit that has supplies for a 29mm ring. Fits perfect.

Not only did Bobby play phone tag, chase parts & help me find spec - he stayed late last night for me to drive down and pick up the right parts. Really awesome support from Bobby/SBT on a part I bought end of last season.

Will be installing today if the weather holds out